... Internet access, without external plug in the card, directly into theSIM card, easy and convenient, which not only ... HSUPA/GSM/GPRS/EDGEWorking FrequencyUMTS/HSPA: 2100MHz 850/1900, 850/2100, 900/2100 (Optional)GSM/GPRS/EDGE: 850/900/1800/1900MHzTransmissionDownload: 7.2Mbps ... in max, Upload: 5.76Mbps in maxSupport SystemWindows 2000/XP/Vista/7, Mac, Linux, ...